Home / 209,723.04-289,481.04-142,693.92

Finding the Fourth Proportional to 209,723.04, 289,481.04 and 142,693.92

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Solution

The fourth proportional to 209,723.04, 289,481.04 and 142,693.92 is: 196,960.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,723.04 : 289,481.04 = 142,693.92 : x
  2. Step 2: Convert to fraction form
    209,723.04/289,481.04 = 142,693.92/x
  3. Step 3: Cross multiply
    209,723.04x = 289,481.04 × 142,693.92
  4. Step 4: Simplify right side
    209,723.04x = 41,307,184,363.28
  5. Step 5: Solve for x
    x = 41,307,184,363.28/209,723.04
  6. Step 6: Final answer
    x = 196,960.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.